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187 lines
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187 lines
5.6 KiB
Plaintext
=======================
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Geolocation with GeoIP2
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=======================
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.. module:: django.contrib.gis.geoip2
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:synopsis: Python interface for MaxMind's GeoIP2 databases.
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The :class:`GeoIP2` object is a wrapper for the `MaxMind geoip2 Python
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library`__. [#]_
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In order to perform IP-based geolocation, the :class:`GeoIP2` object requires
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the :pypi:`geoip2` Python package and the GeoIP ``Country`` and/or ``City``
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datasets in binary format (the CSV files will not work!), downloaded from e.g.
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`MaxMind`__ or `DB-IP`__ websites. Grab the ``GeoLite2-Country.mmdb.gz`` and
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``GeoLite2-City.mmdb.gz`` files and unzip them in a directory corresponding to
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the :setting:`GEOIP_PATH` setting.
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Additionally, it is recommended to install the `libmaxminddb C library`__, so
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that ``geoip2`` can leverage the C library's faster speed.
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__ https://geoip2.readthedocs.io/
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__ https://dev.maxmind.com/geoip/geolite2-free-geolocation-data
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__ https://db-ip.com/db/lite.php
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__ https://github.com/maxmind/libmaxminddb/
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Example
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=======
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Here is an example of its usage:
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.. code-block:: pycon
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>>> from django.contrib.gis.geoip2 import GeoIP2
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>>> g = GeoIP2()
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>>> g.country("google.com")
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{'country_code': 'US', 'country_name': 'United States'}
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>>> g.city("72.14.207.99")
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{'city': 'Mountain View',
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'continent_code': 'NA',
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'continent_name': 'North America',
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'country_code': 'US',
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'country_name': 'United States',
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'dma_code': 807,
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'is_in_european_union': False,
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'latitude': 37.419200897216797,
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'longitude': -122.05740356445312,
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'postal_code': '94043',
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'region': 'CA',
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'time_zone': 'America/Los_Angeles'}
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>>> g.lat_lon("salon.com")
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(39.0437, -77.4875)
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>>> g.lon_lat("uh.edu")
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(-95.4342, 29.834)
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>>> g.geos("24.124.1.80").wkt
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'POINT (-97 38)'
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API Reference
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=============
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.. class:: GeoIP2(path=None, cache=0, country=None, city=None)
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The ``GeoIP`` object does not require any parameters to use the default
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settings. However, at the very least the :setting:`GEOIP_PATH` setting
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should be set with the path of the location of your GeoIP datasets. The
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following initialization keywords may be used to customize any of the
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defaults.
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=================== =======================================================
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Keyword Arguments Description
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=================== =======================================================
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``path`` Base directory to where GeoIP data is located or the
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full path to where the city or country data files
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(``.mmdb``) are located. Assumes that both the city and
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country datasets are located in this directory;
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overrides the :setting:`GEOIP_PATH` setting.
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``cache`` The cache settings when opening up the GeoIP datasets. May
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be an integer in (0, 1, 2, 4, 8) corresponding to the
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``MODE_AUTO``, ``MODE_MMAP_EXT``, ``MODE_MMAP``, and
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``GEOIP_INDEX_CACHE`` ``MODE_MEMORY`` C API settings,
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respectively. Defaults to 0 (``MODE_AUTO``).
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``country`` The name of the GeoIP country data file. Defaults
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to ``GeoLite2-Country.mmdb``. Setting this keyword
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overrides the :setting:`GEOIP_COUNTRY` setting.
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``city`` The name of the GeoIP city data file. Defaults to
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``GeoLite2-City.mmdb``. Setting this keyword overrides
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the :setting:`GEOIP_CITY` setting.
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=================== =======================================================
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Methods
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=======
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Instantiating
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-------------
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.. classmethod:: GeoIP2.open(path, cache)
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This classmethod instantiates the GeoIP object from the given database path
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and given cache setting.
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Querying
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--------
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All the following querying routines may take either a string IP address
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or a fully qualified domain name (FQDN). For example, both
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``'205.186.163.125'`` and ``'djangoproject.com'`` would be valid query
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parameters.
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.. method:: GeoIP2.city(query)
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Returns a dictionary of city information for the given query. Some
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of the values in the dictionary may be undefined (``None``).
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.. method:: GeoIP2.country(query)
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Returns a dictionary with the country code and country for the given
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query.
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.. method:: GeoIP2.country_code(query)
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Returns the country code corresponding to the query.
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.. method:: GeoIP2.country_name(query)
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Returns the country name corresponding to the query.
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Coordinate Retrieval
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--------------------
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.. method:: GeoIP2.coords(query)
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Returns a coordinate tuple of (longitude, latitude).
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.. method:: GeoIP2.lon_lat(query)
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Returns a coordinate tuple of (longitude, latitude).
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.. method:: GeoIP2.lat_lon(query)
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Returns a coordinate tuple of (latitude, longitude),
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.. method:: GeoIP2.geos(query)
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Returns a :class:`~django.contrib.gis.geos.Point` object corresponding to the
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query.
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Settings
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========
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.. setting:: GEOIP_PATH
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``GEOIP_PATH``
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--------------
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A string or :class:`pathlib.Path` specifying the directory where the GeoIP data
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files are located. This setting is *required* unless manually specified
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with ``path`` keyword when initializing the :class:`GeoIP2` object.
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.. setting:: GEOIP_COUNTRY
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``GEOIP_COUNTRY``
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-----------------
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The basename to use for the GeoIP country data file. Defaults to
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``'GeoLite2-Country.mmdb'``.
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.. setting:: GEOIP_CITY
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``GEOIP_CITY``
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--------------
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The basename to use for the GeoIP city data file. Defaults to
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``'GeoLite2-City.mmdb'``.
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Exceptions
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==========
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.. exception:: GeoIP2Exception
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The exception raised when an error occurs in a call to the underlying
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``geoip2`` library.
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.. rubric:: Footnotes
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.. [#] GeoIP(R) is a registered trademark of MaxMind, Inc.
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